Color image combining HST and JWST observations from the 2023-146 release, which is available at the following link, with over-plotted: (i) the Lyα emission from VLT-MUSE of the Cosmic Archipelago systems, at z = 6.145, as yellow contours; and (ii) the four NIRSpec-IFU pointings of program GO 1908, across the main arc and also covering the compact Lyα halo D2, as green squares. The pointing analyzed in detail in the current publication covers the D1 and T1 systems (darker green square). (iii) The other pointing of GO 1908, denoted with a cyan square and covering the metal-poor system LAP1 at z = 6.63, is presented in a separate publication (Vanzella et al. 2023b).